. >> for michelle obama the peak at the end of the speech hit 28,000 tweets per minute. compare that too ann romney, just over 6,000. that is 6,000 to 7,000 range, per minute. >> that is the head of of government and news for twitter saying the volume of reaction is weighted to the democrats. tone is, too. tweets running about evenly split between positive and negative. for mitt romney, more negative than positive. and that does not translate into voter preference. this does measure ability to control the conversation. wruf got to say democrats are getting more tweets. >> all mark, -- right, mark. be sure to stay with us for live coverage from abc news of the president's acceptance speech coming up at 7:00. >> there is mark will be back and you can follow his tweets. >> and g.o.p. vice presidential candidate paul ryan is in los angeles tonight. his first visit to california since being named mitt romney's running mate. and today' tacked the economic record and told supporters rights of americans come from nature and god and not from government. and there is one person th